Though current vaccines reduce the impact of influenza, IAV remains a major human pathogen with an enormous global and domestic impact, causing 30,000 deaths per year in the USA and economic costs totaling tens of billions dollars each year in the USA. Despite its remarkable impact on public health, we have only a limited understanding of the molecular mechanisms underlying its ability to evade the immune response. Antigenic drift precludes long lasting natural or vaccine induced immunity to IAV, and is the cause of yearly vaccine reformulation. Despite its remarkable impact on public health, we have only a limited understanding of the molecular mechanisms underlying antigenic drift. We are examining the changes in the structure and function of the influenza HA that provide an advantage in the face of the host neutralizing antibody response. This year we have also been examining the changes in other influenza proteins that results from anti-hemagglutinin antibody escape.

Project Start
Project End
Budget Start
Budget End
Support Year
4
Fiscal Year
2011
Total Cost
$389,726
Indirect Cost
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State
Country
Zip Code
Altman, Meghan O; Bennink, Jack R; Yewdell, Jonathan W et al. (2015) Lamprey VLRB response to influenza virus supports universal rules of immunogenicity and antigenicity. Elife 4:
Frank, Gregory M; Angeletti, Davide; Ince, William L et al. (2015) A Simple Flow-Cytometric Method Measuring B Cell Surface Immunoglobulin Avidity Enables Characterization of Affinity Maturation to Influenza A Virus. MBio 6:e01156
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Yewdell, Jonathan W; Ince, William L (2013) Greasing the SCIDs for universal flu antibodies. Cell Host Microbe 14:7-8
Brooke, Christopher B; Ince, William L; Wrammert, Jens et al. (2013) Most influenza a virions fail to express at least one essential viral protein. J Virol 87:3155-62

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